Full metal shell, and sturdy, and compact. 3 functional knobs(speed/depth/mix) for adjusting the performance of the chorus effect. Warm analog chorus effect makes the guitar sound more excellent. With true bypass switch and LED working status indicator light. Mix knob flexibly adjusts the mixing ratio of chorus effect and original sound. Mini palm size, compact, portable and easy to operate. No slip silicone pads on the bottom, which making the effect pedal non shifting and anti slip during performance. Input Impedance: 1M ohms Output Impedance: 10K ohms Power: External AC adaptor delivering 9V DC regulated minimum 300mA Item Size: 94 x 53 x 53mm Item Weight: 178g Color: Blue Material: Metal Package Contents: 1 * CHORUS Electric Guitar Effect Pedal Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.